Valve’sPortalis a psychological experience as much as it is a mind-bending puzzler, with players having to complete experiments in each chamber of Aperture Science’s test facility while being berated and often lied to by its overseeing supercomputer GLaDOS. However, one player has moddedPortalto turn it into a psychological horror game akin to something seen in a creepypasta.
The ERROR mod, which is described as “a corrupted version ofPortalthat I’ve somehow managed to get” by creator M_K_L, was first uploaded to Mod DB in December 2019 with two chambers, and it officially released with all its content on August 1. According to PC Gamer’s Christopher Livingston, the mod alters the experience in a multitude of ways similar to otherfamous video game creepypastas. For example, it replaces GLaDOS' narration with eerie ambient noises and distant voices, messes with the game’s visuals, and adds more “overt horrors” like teleporting the player to unusual places.

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Portalis known for its clever puzzles cut together with comedic moments, so the idea of a mod like ERROR overhauling that experience is as intriguing as it is unsettling.Valve shut down the possibility ofPortalin VRaround the release ofHalf-Life: Alyxdue to issues with the technology, so unique takes on the popular series by fans is a great way to keep it fresh.
That being said, Valve has not completely abandonedPortal. Respawn Entertainment’s battle royaleApex Legendswill receiveHalf-LifeandPortalweapon charmswhen the game releases on Steam, much like Mediatonic’s hit gameFall Guys: Ultimate Knockoutreleased a specialHalf-Lifecostume for players who pre-ordered through Valve’s online storefront.
Modding communities have expanded what’s possible in a number of games through aesthetic changes, quality-of-life improvements, and new mechanics that alter how users can approach the experience. For instance, one mod made it soall romance options inThe Witcher 3became Yennefer, thus ensuring the character would be Geralt of Rivia’s one true partner.
That romance-focused mod is a far cry from M_K_L’s horrific version ofPortal, but the dichotomy between the two shows the potential for mods when there are dedicated fans willing to try something new. During Bethesda’s QuakeCon At Home event, Project LeadJeff Gardiner confirmed mod support is coming toFallout 76, which should support that game’s longevity much like it has forPortal.
Portalis available now on PC and legacy consoles.